Wafer holder for stepper



FIG. 1 is a front view of a wafer holder for a stepper showing my newdesign;

FIG. 2 is a rear view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a front perspective view thereof, wherein each of the threepins leans toward the center of the holder;

FIG. 8 is a cross sectional view taken along line 8-8 of FIG. 3;

FIG. 9 is an enlarged portion view taken along line 9-9 of FIG. 6;

FIG. 10 is an enlarged portion view taken along line 10-10 of FIG. 5;and,

FIG. 11 is an enlarged portion view taken along line 11-11 of FIG. 1.

The broken lines shown in the drawings represent portions of the waferholder for a stepper that form no part of the claimed design.

CLAIM The ornamental design for a wafer holder for a stepper, as shownand described.